A method based on holographic interferometry in real time
with reference fringes for the determination of liquid parameters in cells
with one inclined wall is presented. By studying the interferograms one
gets a graphical recording of the spatial distribution of the refraction index
of the liquid at a given time.
Mihai F. Ralea,
"Method of investigating phenomena in liquids by holographic interferometry," Optical Engineering 35(5), (1 May 1996). https://doi.org/10.1117/1.600696